Archived Forum Admin replied the topic: Re: EB Radiation
Wire and cable insulations can be crosslinked with high voltage electron beam (EB) radiation. A great starting place would be this web site:
Check out the RDI Menu on the right hand side and read the sections "Applications", "Science", and "E-Beam Theory"
Before high voltage electron beam machines, gamma radiation was sometimes used but that is now pretty much a dead issue for wire and cable.